This graphic organizer may be used to help students analyze the processes and components of Earth System phenomena.

This photo of Earth taken in December 1968 by the Apollo 8 astronauts was the first time humans were able to see our home planet as an isolated sphere in space.

What are Phytoplankton?

Derived from the Greek words phyto (plant) and plankton (made to wander or drift), phytoplankton are microscopic organisms that live in watery environments, both salty and fresh.

Explore the energy and matter cycles found within the Earth System. 

Helping students build their understanding of Earth's spheres and how they are connected is difficult.  Review the graphics to help identify the parts of the Earth System and the processes that connect them at the local, regional, and global scales.

In this lesson, students investigate and identify various phytoplankton using images that were previously taken with a compound microscope.  Credit:  This lesson is modified from a lesson of the same name created by The Center for Microbial Oceanography: Research and Education (C-MORE) 

Students use Phytopia: Exploration of the Marine Ecosystem, a computer-based tool, to investigate various phytoplankton species and topics relating to phytoplankton biology. 

This investigation is part of the NASA: Mission Geography Module "What are the causes and consequences of climate change?" that guides students through explorations in climatic variability and evidence for global climate change. 

Review this mapped plot of the historic Ocean Chlorophyll Concentrations of key locations around the world for the period of 1998-2018. Also, consider using the Map Cube to help students with deeper dives into data analysis. Credit: NASA, NOAA

This is the first of a four-part series on the water cycle, which follows the journey of water from the ocean to the atmosphere, to the land, and back again to the ocean. Students review the video and answer questions.